Exercise intensity of recreational sport: impacts of sex and fitness

After providing informed consent, participants wore heart rate monitors (Polar Team2 Pro system, Polar, Lachine, QC) during two games of their intramural sport (Soccer, 80 min/game; Frisbee, 40 min/game). [...]absolute exercise intensity (METs) and energy expenditure (kcal) are impacted by both sex and aerobic fitness suggesting that participation in sport by some populations (sedentary, overweight, clinical, or female populations for example) may not be associated with significant health benefit. Strath S.J., Swartz A.M., Bassett D.R., O'Brien W.L., King G.A., Ainsworth B.E. (2000) Evaluation of heart rate as a method for assessing moderate intensity physical activity.